./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56ae0381e0fc321a4bef875cc97d6a437c7ca54ffeb3bb010be2e47fa76c5a5f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 18:43:27,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 18:43:27,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 18:43:27,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 18:43:27,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 18:43:27,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 18:43:27,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 18:43:27,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 18:43:27,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 18:43:27,685 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 18:43:27,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 18:43:27,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 18:43:27,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 18:43:27,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 18:43:27,689 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 18:43:27,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 18:43:27,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 18:43:27,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 18:43:27,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 18:43:27,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 18:43:27,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 18:43:27,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 18:43:27,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 18:43:27,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 18:43:27,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 18:43:27,696 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 18:43:27,696 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 18:43:27,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 18:43:27,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 18:43:27,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 18:43:27,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 18:43:27,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 18:43:27,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 18:43:27,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 18:43:27,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:43:27,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 18:43:27,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 18:43:27,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 18:43:27,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 18:43:27,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 18:43:27,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 18:43:27,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 18:43:27,702 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 18:43:27,702 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 18:43:27,703 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56ae0381e0fc321a4bef875cc97d6a437c7ca54ffeb3bb010be2e47fa76c5a5f [2024-11-20 18:43:27,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 18:43:27,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 18:43:27,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 18:43:27,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 18:43:27,988 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 18:43:27,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound20.c [2024-11-20 18:43:29,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 18:43:29,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 18:43:29,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound20.c [2024-11-20 18:43:29,586 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76028d32f/237362f64350416d9d653ebb2f87964b/FLAG538391622 [2024-11-20 18:43:29,597 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76028d32f/237362f64350416d9d653ebb2f87964b [2024-11-20 18:43:29,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 18:43:29,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 18:43:29,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 18:43:29,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 18:43:29,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 18:43:29,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e39a55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29, skipping insertion in model container [2024-11-20 18:43:29,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,632 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 18:43:29,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:43:29,847 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 18:43:29,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:43:29,882 INFO L204 MainTranslator]: Completed translation [2024-11-20 18:43:29,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29 WrapperNode [2024-11-20 18:43:29,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 18:43:29,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 18:43:29,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 18:43:29,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 18:43:29,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,928 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-20 18:43:29,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 18:43:29,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 18:43:29,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 18:43:29,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 18:43:29,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,959 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,985 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 18:43:29,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:29,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:30,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:30,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:30,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 18:43:30,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 18:43:30,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 18:43:30,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 18:43:30,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (1/1) ... [2024-11-20 18:43:30,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:43:30,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:30,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 18:43:30,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 18:43:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 18:43:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 18:43:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 18:43:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 18:43:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 18:43:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 18:43:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 18:43:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 18:43:30,152 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 18:43:30,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 18:43:30,478 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-20 18:43:30,478 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 18:43:30,493 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 18:43:30,493 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 18:43:30,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:43:30 BoogieIcfgContainer [2024-11-20 18:43:30,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 18:43:30,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 18:43:30,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 18:43:30,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 18:43:30,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:43:29" (1/3) ... [2024-11-20 18:43:30,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9cce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:43:30, skipping insertion in model container [2024-11-20 18:43:30,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:43:29" (2/3) ... [2024-11-20 18:43:30,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9cce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:43:30, skipping insertion in model container [2024-11-20 18:43:30,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:43:30" (3/3) ... [2024-11-20 18:43:30,503 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u2_valuebound20.c [2024-11-20 18:43:30,535 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 18:43:30,536 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-20 18:43:30,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 18:43:30,630 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19a3ab6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 18:43:30,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-20 18:43:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 61 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-20 18:43:30,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:30,642 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:30,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:30,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash 299065549, now seen corresponding path program 1 times [2024-11-20 18:43:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:30,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831765867] [2024-11-20 18:43:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:30,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:30,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:43:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:30,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:43:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:30,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:30,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831765867] [2024-11-20 18:43:30,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831765867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:30,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:30,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:43:30,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43327245] [2024-11-20 18:43:30,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:30,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 18:43:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:30,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 18:43:30,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 18:43:30,836 INFO L87 Difference]: Start difference. First operand has 68 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 61 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 18:43:30,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:30,861 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2024-11-20 18:43:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 18:43:30,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2024-11-20 18:43:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:30,870 INFO L225 Difference]: With dead ends: 132 [2024-11-20 18:43:30,870 INFO L226 Difference]: Without dead ends: 61 [2024-11-20 18:43:30,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 18:43:30,875 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:30,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:43:30,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-20 18:43:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-20 18:43:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.6470588235294117) internal successors, (56), 55 states have internal predecessors, (56), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 18:43:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2024-11-20 18:43:30,910 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 16 [2024-11-20 18:43:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:30,911 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2024-11-20 18:43:30,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 18:43:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2024-11-20 18:43:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-20 18:43:30,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:30,913 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:30,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 18:43:30,914 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:30,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash 614488008, now seen corresponding path program 1 times [2024-11-20 18:43:30,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:30,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984705716] [2024-11-20 18:43:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:30,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:30,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509487171] [2024-11-20 18:43:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:30,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:30,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:30,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:30,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 18:43:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:31,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:43:31,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:31,044 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:43:31,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:31,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984705716] [2024-11-20 18:43:31,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:31,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509487171] [2024-11-20 18:43:31,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509487171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:31,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:31,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:43:31,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198027536] [2024-11-20 18:43:31,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:31,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:43:31,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:31,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:43:31,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:43:31,054 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 18:43:31,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:31,186 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2024-11-20 18:43:31,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:43:31,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-20 18:43:31,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:31,188 INFO L225 Difference]: With dead ends: 92 [2024-11-20 18:43:31,189 INFO L226 Difference]: Without dead ends: 82 [2024-11-20 18:43:31,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:43:31,190 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 18 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:31,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 69 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:31,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-20 18:43:31,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2024-11-20 18:43:31,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.5576923076923077) internal successors, (81), 73 states have internal predecessors, (81), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2024-11-20 18:43:31,209 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 16 [2024-11-20 18:43:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:31,210 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2024-11-20 18:43:31,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 18:43:31,212 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2024-11-20 18:43:31,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-20 18:43:31,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:31,213 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:31,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 18:43:31,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:31,414 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1447673844, now seen corresponding path program 1 times [2024-11-20 18:43:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:31,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103137810] [2024-11-20 18:43:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:31,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:31,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421353853] [2024-11-20 18:43:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:31,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:31,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:31,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:31,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 18:43:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:31,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:43:31,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:31,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:43:31,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:31,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103137810] [2024-11-20 18:43:31,566 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:31,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421353853] [2024-11-20 18:43:31,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421353853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:31,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:31,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:43:31,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854934222] [2024-11-20 18:43:31,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:31,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:43:31,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:31,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:43:31,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:43:31,571 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 18:43:31,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:31,687 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2024-11-20 18:43:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:43:31,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-20 18:43:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:31,690 INFO L225 Difference]: With dead ends: 84 [2024-11-20 18:43:31,691 INFO L226 Difference]: Without dead ends: 82 [2024-11-20 18:43:31,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:43:31,692 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:31,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 67 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:31,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-20 18:43:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2024-11-20 18:43:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 73 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:31,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2024-11-20 18:43:31,704 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 20 [2024-11-20 18:43:31,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:31,705 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2024-11-20 18:43:31,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 18:43:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2024-11-20 18:43:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-20 18:43:31,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:31,706 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:31,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 18:43:31,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 18:43:31,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:31,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:31,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1928216147, now seen corresponding path program 1 times [2024-11-20 18:43:31,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:31,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803557619] [2024-11-20 18:43:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:31,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:43:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:43:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:32,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803557619] [2024-11-20 18:43:32,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803557619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:32,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:32,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:43:32,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51345486] [2024-11-20 18:43:32,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:32,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:43:32,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:43:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:32,126 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 18:43:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:32,235 INFO L93 Difference]: Finished difference Result 84 states and 87 transitions. [2024-11-20 18:43:32,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:43:32,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-20 18:43:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:32,237 INFO L225 Difference]: With dead ends: 84 [2024-11-20 18:43:32,237 INFO L226 Difference]: Without dead ends: 82 [2024-11-20 18:43:32,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:32,242 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 17 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:32,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 90 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:32,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-20 18:43:32,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2024-11-20 18:43:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 73 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:32,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2024-11-20 18:43:32,249 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 21 [2024-11-20 18:43:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:32,249 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2024-11-20 18:43:32,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 18:43:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2024-11-20 18:43:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-20 18:43:32,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:32,251 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:32,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 18:43:32,251 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:32,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:32,252 INFO L85 PathProgramCache]: Analyzing trace with hash 797274018, now seen corresponding path program 1 times [2024-11-20 18:43:32,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:32,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39222282] [2024-11-20 18:43:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:32,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:43:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:43:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 18:43:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:32,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:32,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39222282] [2024-11-20 18:43:32,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39222282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:32,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:32,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:43:32,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702496039] [2024-11-20 18:43:32,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:32,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:43:32,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:32,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:43:32,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:43:32,370 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:32,392 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2024-11-20 18:43:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:43:32,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-20 18:43:32,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:32,394 INFO L225 Difference]: With dead ends: 82 [2024-11-20 18:43:32,394 INFO L226 Difference]: Without dead ends: 80 [2024-11-20 18:43:32,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:43:32,395 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:32,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 112 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:43:32,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-20 18:43:32,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-20 18:43:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 73 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:32,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2024-11-20 18:43:32,405 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 30 [2024-11-20 18:43:32,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:32,406 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2024-11-20 18:43:32,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2024-11-20 18:43:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-20 18:43:32,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:32,407 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:32,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 18:43:32,408 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:32,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:32,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1676114169, now seen corresponding path program 1 times [2024-11-20 18:43:32,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:32,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457838044] [2024-11-20 18:43:32,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:32,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:43:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:43:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 18:43:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:32,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:32,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457838044] [2024-11-20 18:43:32,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457838044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:32,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:32,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:43:32,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393821226] [2024-11-20 18:43:32,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:32,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:43:32,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:32,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:43:32,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:32,532 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 18:43:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:32,792 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2024-11-20 18:43:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:43:32,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2024-11-20 18:43:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:32,793 INFO L225 Difference]: With dead ends: 80 [2024-11-20 18:43:32,794 INFO L226 Difference]: Without dead ends: 79 [2024-11-20 18:43:32,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:43:32,795 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 36 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:32,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 86 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:43:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-20 18:43:32,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-20 18:43:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 72 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2024-11-20 18:43:32,808 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 32 [2024-11-20 18:43:32,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:32,808 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2024-11-20 18:43:32,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 18:43:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2024-11-20 18:43:32,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-20 18:43:32,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:32,811 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:32,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 18:43:32,811 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:32,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:32,811 INFO L85 PathProgramCache]: Analyzing trace with hash 419931781, now seen corresponding path program 1 times [2024-11-20 18:43:32,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:32,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856175259] [2024-11-20 18:43:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:32,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:32,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769354311] [2024-11-20 18:43:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:32,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:32,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:32,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:32,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 18:43:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:32,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:43:32,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:32,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:43:32,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:32,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856175259] [2024-11-20 18:43:32,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769354311] [2024-11-20 18:43:32,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769354311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:32,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:32,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:43:32,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174023552] [2024-11-20 18:43:32,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:32,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:43:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:43:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:32,995 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:33,152 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2024-11-20 18:43:33,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:43:33,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-20 18:43:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:33,153 INFO L225 Difference]: With dead ends: 84 [2024-11-20 18:43:33,153 INFO L226 Difference]: Without dead ends: 83 [2024-11-20 18:43:33,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:33,154 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:33,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 67 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:33,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-20 18:43:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2024-11-20 18:43:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 74 states have internal predecessors, (76), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2024-11-20 18:43:33,162 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 33 [2024-11-20 18:43:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:33,162 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2024-11-20 18:43:33,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:33,163 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2024-11-20 18:43:33,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-20 18:43:33,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:33,164 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:33,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 18:43:33,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:33,368 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:33,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:33,368 INFO L85 PathProgramCache]: Analyzing trace with hash 132983419, now seen corresponding path program 1 times [2024-11-20 18:43:33,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:33,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121261652] [2024-11-20 18:43:33,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:33,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:33,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232704047] [2024-11-20 18:43:33,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:33,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:33,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:33,388 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:33,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 18:43:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:33,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 18:43:33,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:33,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:43:33,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:33,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121261652] [2024-11-20 18:43:33,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:33,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232704047] [2024-11-20 18:43:33,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232704047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:33,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:33,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:43:33,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112464756] [2024-11-20 18:43:33,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:33,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:43:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:33,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:43:33,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:33,596 INFO L87 Difference]: Start difference. First operand 81 states and 84 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:33,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:33,719 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2024-11-20 18:43:33,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:43:33,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-20 18:43:33,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:33,722 INFO L225 Difference]: With dead ends: 86 [2024-11-20 18:43:33,722 INFO L226 Difference]: Without dead ends: 85 [2024-11-20 18:43:33,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:33,723 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:33,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 80 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:33,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-20 18:43:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2024-11-20 18:43:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 55 states have (on average 1.4) internal successors, (77), 75 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2024-11-20 18:43:33,736 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 34 [2024-11-20 18:43:33,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:33,737 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2024-11-20 18:43:33,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2024-11-20 18:43:33,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-20 18:43:33,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:33,739 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:33,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 18:43:33,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:33,940 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:33,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:33,941 INFO L85 PathProgramCache]: Analyzing trace with hash -172481209, now seen corresponding path program 1 times [2024-11-20 18:43:33,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:33,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934979195] [2024-11-20 18:43:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:33,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:34,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:43:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:34,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:43:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:34,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 18:43:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:34,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:34,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934979195] [2024-11-20 18:43:34,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934979195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:34,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:43:34,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:43:34,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237260734] [2024-11-20 18:43:34,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:34,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:43:34,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:34,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:43:34,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:43:34,053 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:34,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:34,170 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2024-11-20 18:43:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:43:34,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-20 18:43:34,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:34,173 INFO L225 Difference]: With dead ends: 82 [2024-11-20 18:43:34,173 INFO L226 Difference]: Without dead ends: 74 [2024-11-20 18:43:34,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:43:34,174 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 47 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:34,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 69 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:34,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-20 18:43:34,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-20 18:43:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 67 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:43:34,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2024-11-20 18:43:34,187 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 35 [2024-11-20 18:43:34,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:34,187 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2024-11-20 18:43:34,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:34,188 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2024-11-20 18:43:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-20 18:43:34,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:34,188 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:34,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 18:43:34,189 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:34,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash -864067445, now seen corresponding path program 1 times [2024-11-20 18:43:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:34,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253460737] [2024-11-20 18:43:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:34,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39751603] [2024-11-20 18:43:34,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:34,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:34,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:34,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:34,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 18:43:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:34,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 18:43:34,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 18:43:34,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:43:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 18:43:34,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:34,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253460737] [2024-11-20 18:43:34,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:34,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39751603] [2024-11-20 18:43:34,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39751603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:43:34,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:43:34,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-20 18:43:34,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64421053] [2024-11-20 18:43:34,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:43:34,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 18:43:34,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:34,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 18:43:34,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:43:34,633 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-20 18:43:34,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:34,960 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2024-11-20 18:43:34,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 18:43:34,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37 [2024-11-20 18:43:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:34,962 INFO L225 Difference]: With dead ends: 100 [2024-11-20 18:43:34,963 INFO L226 Difference]: Without dead ends: 99 [2024-11-20 18:43:34,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 18:43:34,964 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 49 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:34,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 134 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 18:43:34,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-20 18:43:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2024-11-20 18:43:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 87 states have internal predecessors, (103), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 18:43:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2024-11-20 18:43:34,976 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 37 [2024-11-20 18:43:34,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:34,977 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2024-11-20 18:43:34,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-20 18:43:34,977 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2024-11-20 18:43:34,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-20 18:43:34,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:34,978 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:34,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 18:43:35,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 18:43:35,179 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:35,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1440125075, now seen corresponding path program 1 times [2024-11-20 18:43:35,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:35,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275520085] [2024-11-20 18:43:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:35,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:35,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342687762] [2024-11-20 18:43:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:35,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:35,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:35,194 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:35,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 18:43:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:35,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 18:43:35,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:35,287 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:35,287 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:43:35,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:35,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275520085] [2024-11-20 18:43:35,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:35,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342687762] [2024-11-20 18:43:35,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342687762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:43:35,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:43:35,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-20 18:43:35,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016696162] [2024-11-20 18:43:35,467 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:43:35,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:43:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:35,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:43:35,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:43:35,467 INFO L87 Difference]: Start difference. First operand 95 states and 113 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:35,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:35,572 INFO L93 Difference]: Finished difference Result 95 states and 113 transitions. [2024-11-20 18:43:35,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:43:35,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-20 18:43:35,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:35,573 INFO L225 Difference]: With dead ends: 95 [2024-11-20 18:43:35,574 INFO L226 Difference]: Without dead ends: 91 [2024-11-20 18:43:35,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:43:35,574 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:35,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 72 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:35,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-20 18:43:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-20 18:43:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 69 states have (on average 1.391304347826087) internal successors, (96), 83 states have internal predecessors, (96), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 18:43:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 106 transitions. [2024-11-20 18:43:35,583 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 106 transitions. Word has length 39 [2024-11-20 18:43:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:35,583 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 106 transitions. [2024-11-20 18:43:35,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:43:35,583 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2024-11-20 18:43:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-20 18:43:35,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:35,584 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:35,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 18:43:35,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:35,789 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:35,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1694204316, now seen corresponding path program 1 times [2024-11-20 18:43:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:35,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474553771] [2024-11-20 18:43:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:35,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146818387] [2024-11-20 18:43:35,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:35,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:35,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:35,804 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:35,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 18:43:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:35,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 18:43:35,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 18:43:36,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:43:36,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474553771] [2024-11-20 18:43:36,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146818387] [2024-11-20 18:43:36,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146818387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:43:36,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:43:36,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-20 18:43:36,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263658584] [2024-11-20 18:43:36,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:43:36,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 18:43:36,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:36,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 18:43:36,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:43:36,157 INFO L87 Difference]: Start difference. First operand 91 states and 106 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 18:43:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:36,312 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2024-11-20 18:43:36,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 18:43:36,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2024-11-20 18:43:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:36,314 INFO L225 Difference]: With dead ends: 99 [2024-11-20 18:43:36,314 INFO L226 Difference]: Without dead ends: 95 [2024-11-20 18:43:36,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:43:36,314 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 57 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:36,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 90 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:43:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-20 18:43:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-20 18:43:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 85 states have internal predecessors, (95), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 18:43:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2024-11-20 18:43:36,320 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 40 [2024-11-20 18:43:36,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:36,321 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2024-11-20 18:43:36,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 18:43:36,321 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2024-11-20 18:43:36,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-20 18:43:36,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:36,322 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:36,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-20 18:43:36,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:36,523 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:36,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:36,523 INFO L85 PathProgramCache]: Analyzing trace with hash -980726193, now seen corresponding path program 1 times [2024-11-20 18:43:36,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:36,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713403535] [2024-11-20 18:43:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:36,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813950422] [2024-11-20 18:43:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:36,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:36,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:36,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:36,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 18:43:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:36,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 18:43:36,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:36,741 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 18:43:36,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:43:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:36,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:36,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713403535] [2024-11-20 18:43:36,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:36,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813950422] [2024-11-20 18:43:36,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813950422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:43:36,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:43:36,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-20 18:43:36,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555082186] [2024-11-20 18:43:36,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:43:36,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 18:43:36,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 18:43:36,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:43:36,886 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-20 18:43:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:37,356 INFO L93 Difference]: Finished difference Result 127 states and 151 transitions. [2024-11-20 18:43:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 18:43:37,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 41 [2024-11-20 18:43:37,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:37,357 INFO L225 Difference]: With dead ends: 127 [2024-11-20 18:43:37,357 INFO L226 Difference]: Without dead ends: 125 [2024-11-20 18:43:37,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-20 18:43:37,358 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 145 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:37,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 122 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 18:43:37,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-20 18:43:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 116. [2024-11-20 18:43:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 107 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:43:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2024-11-20 18:43:37,366 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 41 [2024-11-20 18:43:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:37,366 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2024-11-20 18:43:37,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-20 18:43:37,366 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2024-11-20 18:43:37,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 18:43:37,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:37,367 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:37,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 18:43:37,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 18:43:37,572 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:37,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:37,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1880031951, now seen corresponding path program 1 times [2024-11-20 18:43:37,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:37,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654959179] [2024-11-20 18:43:37,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:37,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:37,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125198800] [2024-11-20 18:43:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:37,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:37,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:37,593 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:37,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 18:43:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:37,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 18:43:37,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:37,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:43:37,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 18:43:37,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:37,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654959179] [2024-11-20 18:43:37,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:43:37,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125198800] [2024-11-20 18:43:37,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125198800] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:43:37,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:43:37,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-20 18:43:37,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374116124] [2024-11-20 18:43:37,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:43:37,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 18:43:37,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:37,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 18:43:37,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:43:37,942 INFO L87 Difference]: Start difference. First operand 116 states and 140 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 18:43:39,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-20 18:43:43,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-20 18:43:47,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-20 18:43:48,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-20 18:43:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:48,945 INFO L93 Difference]: Finished difference Result 121 states and 140 transitions. [2024-11-20 18:43:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 18:43:48,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-11-20 18:43:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:48,947 INFO L225 Difference]: With dead ends: 121 [2024-11-20 18:43:48,947 INFO L226 Difference]: Without dead ends: 117 [2024-11-20 18:43:48,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:43:48,948 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:48,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 133 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 215 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2024-11-20 18:43:48,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-20 18:43:48,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-20 18:43:48,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 106 states have internal predecessors, (121), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:43:48,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2024-11-20 18:43:48,955 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 43 [2024-11-20 18:43:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:48,956 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2024-11-20 18:43:48,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 18:43:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2024-11-20 18:43:48,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-20 18:43:48,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:48,957 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:48,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 18:43:49,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-20 18:43:49,158 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:49,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:49,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1917174407, now seen corresponding path program 1 times [2024-11-20 18:43:49,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:49,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766986348] [2024-11-20 18:43:49,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:49,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:43:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:43:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 18:43:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 18:43:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 18:43:49,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:49,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766986348] [2024-11-20 18:43:49,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766986348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:43:49,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222759921] [2024-11-20 18:43:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:49,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:49,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:49,274 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:49,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 18:43:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:43:49,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 18:43:49,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:43:49,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222759921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:43:49,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:43:49,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-20 18:43:49,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435395357] [2024-11-20 18:43:49,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:43:49,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:43:49,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:49,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:43:49,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:43:49,375 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 18:43:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:49,409 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2024-11-20 18:43:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:43:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-11-20 18:43:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:49,411 INFO L225 Difference]: With dead ends: 115 [2024-11-20 18:43:49,411 INFO L226 Difference]: Without dead ends: 114 [2024-11-20 18:43:49,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:43:49,412 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 19 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:49,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 88 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:43:49,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-20 18:43:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-20 18:43:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 105 states have internal predecessors, (118), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:43:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2024-11-20 18:43:49,422 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 53 [2024-11-20 18:43:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:49,422 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2024-11-20 18:43:49,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 18:43:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2024-11-20 18:43:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-20 18:43:49,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:49,423 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:49,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-20 18:43:49,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-20 18:43:49,624 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:49,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash -697135456, now seen corresponding path program 1 times [2024-11-20 18:43:49,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:49,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142033959] [2024-11-20 18:43:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:43:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:43:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 18:43:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 18:43:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 18:43:49,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:43:49,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142033959] [2024-11-20 18:43:49,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142033959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:43:49,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190104296] [2024-11-20 18:43:49,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:49,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:49,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:49,715 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:49,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 18:43:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:49,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:43:49,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 18:43:49,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:43:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 18:43:49,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190104296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:43:49,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 18:43:49,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-20 18:43:49,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033778498] [2024-11-20 18:43:49,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 18:43:49,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 18:43:49,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:43:49,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 18:43:49,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:43:49,864 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-20 18:43:49,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:43:49,899 INFO L93 Difference]: Finished difference Result 118 states and 130 transitions. [2024-11-20 18:43:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 18:43:49,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 54 [2024-11-20 18:43:49,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:43:49,900 INFO L225 Difference]: With dead ends: 118 [2024-11-20 18:43:49,901 INFO L226 Difference]: Without dead ends: 117 [2024-11-20 18:43:49,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:43:49,901 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 23 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:43:49,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 165 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:43:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-20 18:43:49,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2024-11-20 18:43:49,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 104 states have internal predecessors, (115), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:43:49,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2024-11-20 18:43:49,912 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 54 [2024-11-20 18:43:49,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:43:49,912 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2024-11-20 18:43:49,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-20 18:43:49,913 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2024-11-20 18:43:49,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-20 18:43:49,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:43:49,913 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:43:49,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-20 18:43:50,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-20 18:43:50,114 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:43:50,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:43:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash 66465152, now seen corresponding path program 1 times [2024-11-20 18:43:50,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:43:50,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042607082] [2024-11-20 18:43:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:50,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:43:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:43:50,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530074560] [2024-11-20 18:43:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:43:50,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:43:50,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:43:50,132 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:43:50,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 18:43:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:43:50,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 18:43:50,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:43:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 18:43:50,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:43:58,632 WARN L873 $PredicateComparison]: unable to prove that (< (let ((.cse0 (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296))) (+ .cse0 (* |c_ULTIMATE.start_main_~x~0#1| (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) .cse0))) 9223372036854775807) is different from true [2024-11-20 18:44:39,097 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 11 not checked. [2024-11-20 18:44:39,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:44:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042607082] [2024-11-20 18:44:39,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:44:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530074560] [2024-11-20 18:44:39,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530074560] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:44:39,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:44:39,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-20 18:44:39,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867192655] [2024-11-20 18:44:39,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:44:39,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 18:44:39,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:44:39,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 18:44:39,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=100, Unknown=1, NotChecked=20, Total=156 [2024-11-20 18:44:39,100 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-20 18:44:40,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-20 18:44:42,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-20 18:44:43,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-20 18:44:44,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-20 18:44:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:44:44,937 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2024-11-20 18:44:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 18:44:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 56 [2024-11-20 18:44:44,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:44:44,939 INFO L225 Difference]: With dead ends: 122 [2024-11-20 18:44:44,939 INFO L226 Difference]: Without dead ends: 120 [2024-11-20 18:44:44,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=43, Invalid=116, Unknown=1, NotChecked=22, Total=182 [2024-11-20 18:44:44,940 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 121 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-20 18:44:44,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 160 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 4 Unknown, 109 Unchecked, 5.8s Time] [2024-11-20 18:44:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-20 18:44:44,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-11-20 18:44:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.231578947368421) internal successors, (117), 106 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:44:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2024-11-20 18:44:44,947 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 56 [2024-11-20 18:44:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:44:44,947 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2024-11-20 18:44:44,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-20 18:44:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2024-11-20 18:44:44,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 18:44:44,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:44:44,948 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:44:44,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-20 18:44:45,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 18:44:45,149 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:44:45,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:44:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2060419808, now seen corresponding path program 1 times [2024-11-20 18:44:45,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:44:45,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627307808] [2024-11-20 18:44:45,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:45,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:44:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:44:45,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545265160] [2024-11-20 18:44:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:45,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:45,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:44:45,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:44:45,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-20 18:44:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:44:45,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 18:44:45,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:44:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 18:44:49,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:44:54,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:44:54,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627307808] [2024-11-20 18:44:54,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:44:54,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545265160] [2024-11-20 18:44:54,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545265160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:44:54,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:44:54,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-20 18:44:54,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585227021] [2024-11-20 18:44:54,836 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:44:54,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 18:44:54,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:44:54,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 18:44:54,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=57, Unknown=1, NotChecked=0, Total=90 [2024-11-20 18:44:54,837 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 18:44:55,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:44:55,669 INFO L93 Difference]: Finished difference Result 115 states and 129 transitions. [2024-11-20 18:44:55,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 18:44:55,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2024-11-20 18:44:55,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:44:55,671 INFO L225 Difference]: With dead ends: 115 [2024-11-20 18:44:55,671 INFO L226 Difference]: Without dead ends: 109 [2024-11-20 18:44:55,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=49, Invalid=82, Unknown=1, NotChecked=0, Total=132 [2024-11-20 18:44:55,672 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 35 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 18:44:55,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 78 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 18:44:55,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-20 18:44:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-20 18:44:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 90 states have (on average 1.211111111111111) internal successors, (109), 100 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:44:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2024-11-20 18:44:55,679 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 57 [2024-11-20 18:44:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:44:55,679 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2024-11-20 18:44:55,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 18:44:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2024-11-20 18:44:55,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 18:44:55,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:44:55,680 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:44:55,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-20 18:44:55,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 18:44:55,881 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:44:55,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:44:55,881 INFO L85 PathProgramCache]: Analyzing trace with hash -543541495, now seen corresponding path program 2 times [2024-11-20 18:44:55,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:44:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706896730] [2024-11-20 18:44:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:44:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:44:55,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934989240] [2024-11-20 18:44:55,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 18:44:55,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:55,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:44:55,910 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:44:55,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-20 18:44:55,961 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 18:44:55,961 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 18:44:55,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 18:44:55,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:44:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 18:44:56,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:44:56,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:44:56,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706896730] [2024-11-20 18:44:56,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:44:56,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934989240] [2024-11-20 18:44:56,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934989240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:44:56,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:44:56,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-20 18:44:56,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478539291] [2024-11-20 18:44:56,317 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:44:56,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 18:44:56,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:44:56,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 18:44:56,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-20 18:44:56,318 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:44:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:44:56,504 INFO L93 Difference]: Finished difference Result 112 states and 121 transitions. [2024-11-20 18:44:56,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 18:44:56,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 63 [2024-11-20 18:44:56,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:44:56,506 INFO L225 Difference]: With dead ends: 112 [2024-11-20 18:44:56,506 INFO L226 Difference]: Without dead ends: 109 [2024-11-20 18:44:56,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-20 18:44:56,506 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:44:56,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 94 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:44:56,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-20 18:44:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-20 18:44:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 100 states have internal predecessors, (106), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:44:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2024-11-20 18:44:56,514 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 63 [2024-11-20 18:44:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:44:56,514 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2024-11-20 18:44:56,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 18:44:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2024-11-20 18:44:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 18:44:56,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:44:56,515 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:44:56,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-20 18:44:56,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:56,720 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:44:56,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:44:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1642635051, now seen corresponding path program 1 times [2024-11-20 18:44:56,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:44:56,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186740079] [2024-11-20 18:44:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:56,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:44:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:44:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617173889] [2024-11-20 18:44:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:56,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:56,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:44:56,735 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:44:56,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-20 18:44:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:44:56,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 18:44:56,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:44:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 18:44:57,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:44:57,437 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-20 18:44:57,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:44:57,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186740079] [2024-11-20 18:44:57,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:44:57,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617173889] [2024-11-20 18:44:57,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617173889] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 18:44:57,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:44:57,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2024-11-20 18:44:57,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39911074] [2024-11-20 18:44:57,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:44:57,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:44:57,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:44:57,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:44:57,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-20 18:44:57,439 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 18:44:57,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:44:57,550 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2024-11-20 18:44:57,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:44:57,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 65 [2024-11-20 18:44:57,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:44:57,551 INFO L225 Difference]: With dead ends: 109 [2024-11-20 18:44:57,551 INFO L226 Difference]: Without dead ends: 108 [2024-11-20 18:44:57,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-20 18:44:57,552 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:44:57,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 50 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:44:57,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-20 18:44:57,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-20 18:44:57,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.1555555555555554) internal successors, (104), 99 states have internal predecessors, (104), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:44:57,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2024-11-20 18:44:57,560 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 65 [2024-11-20 18:44:57,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:44:57,560 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2024-11-20 18:44:57,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 18:44:57,560 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2024-11-20 18:44:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 18:44:57,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:44:57,561 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:44:57,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-20 18:44:57,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:57,762 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:44:57,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:44:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1975679155, now seen corresponding path program 1 times [2024-11-20 18:44:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:44:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704425941] [2024-11-20 18:44:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:57,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:44:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:44:57,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046847482] [2024-11-20 18:44:57,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:57,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:57,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:44:57,788 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:44:57,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-20 18:44:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:44:57,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-20 18:44:57,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:44:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 18:44:58,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:44:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 18:44:58,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:44:58,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704425941] [2024-11-20 18:44:58,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:44:58,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046847482] [2024-11-20 18:44:58,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046847482] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 18:44:58,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:44:58,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2024-11-20 18:44:58,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871832157] [2024-11-20 18:44:58,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:44:58,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 18:44:58,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:44:58,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 18:44:58,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-20 18:44:58,494 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 18:44:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:44:58,967 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2024-11-20 18:44:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 18:44:58,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 67 [2024-11-20 18:44:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:44:58,968 INFO L225 Difference]: With dead ends: 108 [2024-11-20 18:44:58,968 INFO L226 Difference]: Without dead ends: 107 [2024-11-20 18:44:58,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-20 18:44:58,969 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 46 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 18:44:58,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 81 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 18:44:58,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-20 18:44:58,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-20 18:44:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 90 states have (on average 1.1333333333333333) internal successors, (102), 98 states have internal predecessors, (102), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 18:44:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 114 transitions. [2024-11-20 18:44:58,978 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 114 transitions. Word has length 67 [2024-11-20 18:44:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:44:58,979 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 114 transitions. [2024-11-20 18:44:58,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 18:44:58,979 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 114 transitions. [2024-11-20 18:44:58,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 18:44:58,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:44:58,980 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:44:58,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-20 18:44:59,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:59,180 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-20 18:44:59,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:44:59,181 INFO L85 PathProgramCache]: Analyzing trace with hash -252121233, now seen corresponding path program 1 times [2024-11-20 18:44:59,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:44:59,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104806880] [2024-11-20 18:44:59,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:59,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:44:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:44:59,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307793708] [2024-11-20 18:44:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:44:59,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:44:59,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:44:59,198 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:44:59,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-20 18:44:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:44:59,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-20 18:44:59,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:44:59,600 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 18:44:59,600 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:44:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 18:44:59,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:44:59,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104806880] [2024-11-20 18:44:59,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:44:59,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307793708] [2024-11-20 18:44:59,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307793708] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 18:44:59,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:44:59,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-20 18:44:59,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463533923] [2024-11-20 18:44:59,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:44:59,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 18:44:59,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:44:59,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 18:44:59,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-20 18:44:59,852 INFO L87 Difference]: Start difference. First operand 107 states and 114 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 18:45:04,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []